net/ixgbe: support VLAN strip per queue offloading in PF
[dpdk.git] / drivers / net / ixgbe / ixgbe_pf.c
1 /* SPDX-License-Identifier: BSD-3-Clause
2  * Copyright(c) 2010-2016 Intel Corporation
3  */
4
5 #include <stdio.h>
6 #include <errno.h>
7 #include <stdint.h>
8 #include <stdlib.h>
9 #include <unistd.h>
10 #include <stdarg.h>
11 #include <inttypes.h>
12
13 #include <rte_interrupts.h>
14 #include <rte_log.h>
15 #include <rte_debug.h>
16 #include <rte_eal.h>
17 #include <rte_ether.h>
18 #include <rte_ethdev_driver.h>
19 #include <rte_memcpy.h>
20 #include <rte_malloc.h>
21 #include <rte_random.h>
22
23 #include "base/ixgbe_common.h"
24 #include "ixgbe_ethdev.h"
25 #include "rte_pmd_ixgbe.h"
26
27 #define IXGBE_MAX_VFTA     (128)
28 #define IXGBE_VF_MSG_SIZE_DEFAULT 1
29 #define IXGBE_VF_GET_QUEUE_MSG_SIZE 5
30 #define IXGBE_ETHERTYPE_FLOW_CTRL 0x8808
31
32 static inline uint16_t
33 dev_num_vf(struct rte_eth_dev *eth_dev)
34 {
35         struct rte_pci_device *pci_dev = RTE_ETH_DEV_TO_PCI(eth_dev);
36
37         return pci_dev->max_vfs;
38 }
39
40 static inline
41 int ixgbe_vf_perm_addr_gen(struct rte_eth_dev *dev, uint16_t vf_num)
42 {
43         unsigned char vf_mac_addr[ETHER_ADDR_LEN];
44         struct ixgbe_vf_info *vfinfo =
45                 *IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private);
46         uint16_t vfn;
47
48         for (vfn = 0; vfn < vf_num; vfn++) {
49                 eth_random_addr(vf_mac_addr);
50                 /* keep the random address as default */
51                 memcpy(vfinfo[vfn].vf_mac_addresses, vf_mac_addr,
52                            ETHER_ADDR_LEN);
53         }
54
55         return 0;
56 }
57
58 static inline int
59 ixgbe_mb_intr_setup(struct rte_eth_dev *dev)
60 {
61         struct ixgbe_interrupt *intr =
62                 IXGBE_DEV_PRIVATE_TO_INTR(dev->data->dev_private);
63
64         intr->mask |= IXGBE_EICR_MAILBOX;
65
66         return 0;
67 }
68
69 void ixgbe_pf_host_init(struct rte_eth_dev *eth_dev)
70 {
71         struct ixgbe_vf_info **vfinfo =
72                 IXGBE_DEV_PRIVATE_TO_P_VFDATA(eth_dev->data->dev_private);
73         struct ixgbe_mirror_info *mirror_info =
74         IXGBE_DEV_PRIVATE_TO_PFDATA(eth_dev->data->dev_private);
75         struct ixgbe_uta_info *uta_info =
76         IXGBE_DEV_PRIVATE_TO_UTA(eth_dev->data->dev_private);
77         struct ixgbe_hw *hw =
78                 IXGBE_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
79         uint16_t vf_num;
80         uint8_t nb_queue;
81
82         PMD_INIT_FUNC_TRACE();
83
84         RTE_ETH_DEV_SRIOV(eth_dev).active = 0;
85         vf_num = dev_num_vf(eth_dev);
86         if (vf_num == 0)
87                 return;
88
89         *vfinfo = rte_zmalloc("vf_info", sizeof(struct ixgbe_vf_info) * vf_num, 0);
90         if (*vfinfo == NULL)
91                 rte_panic("Cannot allocate memory for private VF data\n");
92
93         memset(mirror_info, 0, sizeof(struct ixgbe_mirror_info));
94         memset(uta_info, 0, sizeof(struct ixgbe_uta_info));
95         hw->mac.mc_filter_type = 0;
96
97         if (vf_num >= ETH_32_POOLS) {
98                 nb_queue = 2;
99                 RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_64_POOLS;
100         } else if (vf_num >= ETH_16_POOLS) {
101                 nb_queue = 4;
102                 RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_32_POOLS;
103         } else {
104                 nb_queue = 8;
105                 RTE_ETH_DEV_SRIOV(eth_dev).active = ETH_16_POOLS;
106         }
107
108         RTE_ETH_DEV_SRIOV(eth_dev).nb_q_per_pool = nb_queue;
109         RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx = vf_num;
110         RTE_ETH_DEV_SRIOV(eth_dev).def_pool_q_idx = (uint16_t)(vf_num * nb_queue);
111
112         ixgbe_vf_perm_addr_gen(eth_dev, vf_num);
113
114         /* init_mailbox_params */
115         hw->mbx.ops.init_params(hw);
116
117         /* set mb interrupt mask */
118         ixgbe_mb_intr_setup(eth_dev);
119 }
120
121 void ixgbe_pf_host_uninit(struct rte_eth_dev *eth_dev)
122 {
123         struct ixgbe_vf_info **vfinfo;
124         uint16_t vf_num;
125
126         PMD_INIT_FUNC_TRACE();
127
128         vfinfo = IXGBE_DEV_PRIVATE_TO_P_VFDATA(eth_dev->data->dev_private);
129
130         RTE_ETH_DEV_SRIOV(eth_dev).active = 0;
131         RTE_ETH_DEV_SRIOV(eth_dev).nb_q_per_pool = 0;
132         RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx = 0;
133         RTE_ETH_DEV_SRIOV(eth_dev).def_pool_q_idx = 0;
134
135         vf_num = dev_num_vf(eth_dev);
136         if (vf_num == 0)
137                 return;
138
139         rte_free(*vfinfo);
140         *vfinfo = NULL;
141 }
142
143 static void
144 ixgbe_add_tx_flow_control_drop_filter(struct rte_eth_dev *eth_dev)
145 {
146         struct ixgbe_hw *hw =
147                 IXGBE_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
148         struct ixgbe_filter_info *filter_info =
149                 IXGBE_DEV_PRIVATE_TO_FILTER_INFO(eth_dev->data->dev_private);
150         uint16_t vf_num;
151         int i;
152         struct ixgbe_ethertype_filter ethertype_filter;
153
154         if (!hw->mac.ops.set_ethertype_anti_spoofing) {
155                 RTE_LOG(INFO, PMD, "ether type anti-spoofing is not"
156                         " supported.\n");
157                 return;
158         }
159
160         i = ixgbe_ethertype_filter_lookup(filter_info,
161                                           IXGBE_ETHERTYPE_FLOW_CTRL);
162         if (i >= 0) {
163                 RTE_LOG(ERR, PMD, "A ether type filter"
164                         " entity for flow control already exists!\n");
165                 return;
166         }
167
168         ethertype_filter.ethertype = IXGBE_ETHERTYPE_FLOW_CTRL;
169         ethertype_filter.etqf = IXGBE_ETQF_FILTER_EN |
170                                 IXGBE_ETQF_TX_ANTISPOOF |
171                                 IXGBE_ETHERTYPE_FLOW_CTRL;
172         ethertype_filter.etqs = 0;
173         ethertype_filter.conf = TRUE;
174         i = ixgbe_ethertype_filter_insert(filter_info,
175                                           &ethertype_filter);
176         if (i < 0) {
177                 RTE_LOG(ERR, PMD, "Cannot find an unused ether type filter"
178                         " entity for flow control.\n");
179                 return;
180         }
181
182         IXGBE_WRITE_REG(hw, IXGBE_ETQF(i),
183                         (IXGBE_ETQF_FILTER_EN |
184                         IXGBE_ETQF_TX_ANTISPOOF |
185                         IXGBE_ETHERTYPE_FLOW_CTRL));
186
187         vf_num = dev_num_vf(eth_dev);
188         for (i = 0; i < vf_num; i++)
189                 hw->mac.ops.set_ethertype_anti_spoofing(hw, true, i);
190 }
191
192 int ixgbe_pf_host_configure(struct rte_eth_dev *eth_dev)
193 {
194         uint32_t vtctl, fcrth;
195         uint32_t vfre_slot, vfre_offset;
196         uint16_t vf_num;
197         const uint8_t VFRE_SHIFT = 5;  /* VFRE 32 bits per slot */
198         const uint8_t VFRE_MASK = (uint8_t)((1U << VFRE_SHIFT) - 1);
199         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
200         uint32_t gpie, gcr_ext;
201         uint32_t vlanctrl;
202         int i;
203
204         vf_num = dev_num_vf(eth_dev);
205         if (vf_num == 0)
206                 return -1;
207
208         /* enable VMDq and set the default pool for PF */
209         vtctl = IXGBE_READ_REG(hw, IXGBE_VT_CTL);
210         vtctl |= IXGBE_VMD_CTL_VMDQ_EN;
211         vtctl &= ~IXGBE_VT_CTL_POOL_MASK;
212         vtctl |= RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx
213                 << IXGBE_VT_CTL_POOL_SHIFT;
214         vtctl |= IXGBE_VT_CTL_REPLEN;
215         IXGBE_WRITE_REG(hw, IXGBE_VT_CTL, vtctl);
216
217         vfre_offset = vf_num & VFRE_MASK;
218         vfre_slot = (vf_num >> VFRE_SHIFT) > 0 ? 1 : 0;
219
220         /* Enable pools reserved to PF only */
221         IXGBE_WRITE_REG(hw, IXGBE_VFRE(vfre_slot), (~0U) << vfre_offset);
222         IXGBE_WRITE_REG(hw, IXGBE_VFRE(vfre_slot ^ 1), vfre_slot - 1);
223         IXGBE_WRITE_REG(hw, IXGBE_VFTE(vfre_slot), (~0U) << vfre_offset);
224         IXGBE_WRITE_REG(hw, IXGBE_VFTE(vfre_slot ^ 1), vfre_slot - 1);
225
226         /* PFDMA Tx General Switch Control Enables VMDQ loopback */
227         IXGBE_WRITE_REG(hw, IXGBE_PFDTXGSWC, IXGBE_PFDTXGSWC_VT_LBEN);
228
229         /* clear VMDq map to perment rar 0 */
230         hw->mac.ops.clear_vmdq(hw, 0, IXGBE_CLEAR_VMDQ_ALL);
231
232         /* clear VMDq map to scan rar 127 */
233         IXGBE_WRITE_REG(hw, IXGBE_MPSAR_LO(hw->mac.num_rar_entries), 0);
234         IXGBE_WRITE_REG(hw, IXGBE_MPSAR_HI(hw->mac.num_rar_entries), 0);
235
236         /* set VMDq map to default PF pool */
237         hw->mac.ops.set_vmdq(hw, 0, RTE_ETH_DEV_SRIOV(eth_dev).def_vmdq_idx);
238
239         /*
240          * SW msut set GCR_EXT.VT_Mode the same as GPIE.VT_Mode
241          */
242         gcr_ext = IXGBE_READ_REG(hw, IXGBE_GCR_EXT);
243         gcr_ext &= ~IXGBE_GCR_EXT_VT_MODE_MASK;
244
245         gpie = IXGBE_READ_REG(hw, IXGBE_GPIE);
246         gpie &= ~IXGBE_GPIE_VTMODE_MASK;
247         gpie |= IXGBE_GPIE_MSIX_MODE | IXGBE_GPIE_PBA_SUPPORT;
248
249         switch (RTE_ETH_DEV_SRIOV(eth_dev).active) {
250         case ETH_64_POOLS:
251                 gcr_ext |= IXGBE_GCR_EXT_VT_MODE_64;
252                 gpie |= IXGBE_GPIE_VTMODE_64;
253                 break;
254         case ETH_32_POOLS:
255                 gcr_ext |= IXGBE_GCR_EXT_VT_MODE_32;
256                 gpie |= IXGBE_GPIE_VTMODE_32;
257                 break;
258         case ETH_16_POOLS:
259                 gcr_ext |= IXGBE_GCR_EXT_VT_MODE_16;
260                 gpie |= IXGBE_GPIE_VTMODE_16;
261                 break;
262         }
263
264         IXGBE_WRITE_REG(hw, IXGBE_GCR_EXT, gcr_ext);
265         IXGBE_WRITE_REG(hw, IXGBE_GPIE, gpie);
266
267         /*
268          * enable vlan filtering and allow all vlan tags through
269          */
270         vlanctrl = IXGBE_READ_REG(hw, IXGBE_VLNCTRL);
271         vlanctrl |= IXGBE_VLNCTRL_VFE; /* enable vlan filters */
272         IXGBE_WRITE_REG(hw, IXGBE_VLNCTRL, vlanctrl);
273
274         /* VFTA - enable all vlan filters */
275         for (i = 0; i < IXGBE_MAX_VFTA; i++)
276                 IXGBE_WRITE_REG(hw, IXGBE_VFTA(i), 0xFFFFFFFF);
277
278         /* Enable MAC Anti-Spoofing */
279         hw->mac.ops.set_mac_anti_spoofing(hw, FALSE, vf_num);
280
281         /* set flow control threshold to max to avoid tx switch hang */
282         for (i = 0; i < IXGBE_DCB_MAX_TRAFFIC_CLASS; i++) {
283                 IXGBE_WRITE_REG(hw, IXGBE_FCRTL_82599(i), 0);
284                 fcrth = IXGBE_READ_REG(hw, IXGBE_RXPBSIZE(i)) - 32;
285                 IXGBE_WRITE_REG(hw, IXGBE_FCRTH_82599(i), fcrth);
286         }
287
288         ixgbe_add_tx_flow_control_drop_filter(eth_dev);
289
290         return 0;
291 }
292
293 static void
294 set_rx_mode(struct rte_eth_dev *dev)
295 {
296         struct rte_eth_dev_data *dev_data = dev->data;
297         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
298         u32 fctrl, vmolr = IXGBE_VMOLR_BAM | IXGBE_VMOLR_AUPE;
299         uint16_t vfn = dev_num_vf(dev);
300
301         /* Check for Promiscuous and All Multicast modes */
302         fctrl = IXGBE_READ_REG(hw, IXGBE_FCTRL);
303
304         /* set all bits that we expect to always be set */
305         fctrl &= ~IXGBE_FCTRL_SBP; /* disable store-bad-packets */
306         fctrl |= IXGBE_FCTRL_BAM;
307
308         /* clear the bits we are changing the status of */
309         fctrl &= ~(IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE);
310
311         if (dev_data->promiscuous) {
312                 fctrl |= (IXGBE_FCTRL_UPE | IXGBE_FCTRL_MPE);
313                 vmolr |= (IXGBE_VMOLR_ROPE | IXGBE_VMOLR_MPE);
314         } else {
315                 if (dev_data->all_multicast) {
316                         fctrl |= IXGBE_FCTRL_MPE;
317                         vmolr |= IXGBE_VMOLR_MPE;
318                 } else {
319                         vmolr |= IXGBE_VMOLR_ROMPE;
320                 }
321         }
322
323         if (hw->mac.type != ixgbe_mac_82598EB) {
324                 vmolr |= IXGBE_READ_REG(hw, IXGBE_VMOLR(vfn)) &
325                          ~(IXGBE_VMOLR_MPE | IXGBE_VMOLR_ROMPE |
326                            IXGBE_VMOLR_ROPE);
327                 IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vfn), vmolr);
328         }
329
330         IXGBE_WRITE_REG(hw, IXGBE_FCTRL, fctrl);
331
332         ixgbe_vlan_hw_strip_config(dev);
333 }
334
335 static inline void
336 ixgbe_vf_reset_event(struct rte_eth_dev *dev, uint16_t vf)
337 {
338         struct ixgbe_hw *hw =
339                 IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
340         struct ixgbe_vf_info *vfinfo =
341                 *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
342         int rar_entry = hw->mac.num_rar_entries - (vf + 1);
343         uint32_t vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
344
345         vmolr |= (IXGBE_VMOLR_ROPE | IXGBE_VMOLR_ROMPE |
346                         IXGBE_VMOLR_BAM | IXGBE_VMOLR_AUPE);
347         IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
348
349         IXGBE_WRITE_REG(hw, IXGBE_VMVIR(vf), 0);
350
351         /* reset multicast table array for vf */
352         vfinfo[vf].num_vf_mc_hashes = 0;
353
354         /* reset rx mode */
355         set_rx_mode(dev);
356
357         hw->mac.ops.clear_rar(hw, rar_entry);
358 }
359
360 static inline void
361 ixgbe_vf_reset_msg(struct rte_eth_dev *dev, uint16_t vf)
362 {
363         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
364         uint32_t reg;
365         uint32_t reg_offset, vf_shift;
366         const uint8_t VFRE_SHIFT = 5;  /* VFRE 32 bits per slot */
367         const uint8_t VFRE_MASK = (uint8_t)((1U << VFRE_SHIFT) - 1);
368         uint8_t  nb_q_per_pool;
369         int i;
370
371         vf_shift = vf & VFRE_MASK;
372         reg_offset = (vf >> VFRE_SHIFT) > 0 ? 1 : 0;
373
374         /* enable transmit for vf */
375         reg = IXGBE_READ_REG(hw, IXGBE_VFTE(reg_offset));
376         reg |= (reg | (1 << vf_shift));
377         IXGBE_WRITE_REG(hw, IXGBE_VFTE(reg_offset), reg);
378
379         /* enable all queue drop for IOV */
380         nb_q_per_pool = RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
381         for (i = vf * nb_q_per_pool; i < (vf + 1) * nb_q_per_pool; i++) {
382                 IXGBE_WRITE_FLUSH(hw);
383                 reg = IXGBE_QDE_ENABLE | IXGBE_QDE_WRITE;
384                 reg |= i << IXGBE_QDE_IDX_SHIFT;
385                 IXGBE_WRITE_REG(hw, IXGBE_QDE, reg);
386         }
387
388         /* enable receive for vf */
389         reg = IXGBE_READ_REG(hw, IXGBE_VFRE(reg_offset));
390         reg |= (reg | (1 << vf_shift));
391         IXGBE_WRITE_REG(hw, IXGBE_VFRE(reg_offset), reg);
392
393         /* Enable counting of spoofed packets in the SSVPC register */
394         reg = IXGBE_READ_REG(hw, IXGBE_VMECM(reg_offset));
395         reg |= (1 << vf_shift);
396         IXGBE_WRITE_REG(hw, IXGBE_VMECM(reg_offset), reg);
397
398         ixgbe_vf_reset_event(dev, vf);
399 }
400
401 static int
402 ixgbe_enable_vf_mc_promisc(struct rte_eth_dev *dev, uint32_t vf)
403 {
404         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
405         uint32_t vmolr;
406
407         vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
408
409         RTE_LOG(INFO, PMD, "VF %u: enabling multicast promiscuous\n", vf);
410
411         vmolr |= IXGBE_VMOLR_MPE;
412
413         IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
414
415         return 0;
416 }
417
418 static int
419 ixgbe_disable_vf_mc_promisc(struct rte_eth_dev *dev, uint32_t vf)
420 {
421         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
422         uint32_t vmolr;
423
424         vmolr = IXGBE_READ_REG(hw, IXGBE_VMOLR(vf));
425
426         RTE_LOG(INFO, PMD, "VF %u: disabling multicast promiscuous\n", vf);
427
428         vmolr &= ~IXGBE_VMOLR_MPE;
429
430         IXGBE_WRITE_REG(hw, IXGBE_VMOLR(vf), vmolr);
431
432         return 0;
433 }
434
435 static int
436 ixgbe_vf_reset(struct rte_eth_dev *dev, uint16_t vf, uint32_t *msgbuf)
437 {
438         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
439         struct ixgbe_vf_info *vfinfo =
440                 *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
441         unsigned char *vf_mac = vfinfo[vf].vf_mac_addresses;
442         int rar_entry = hw->mac.num_rar_entries - (vf + 1);
443         uint8_t *new_mac = (uint8_t *)(&msgbuf[1]);
444
445         ixgbe_vf_reset_msg(dev, vf);
446
447         hw->mac.ops.set_rar(hw, rar_entry, vf_mac, vf, IXGBE_RAH_AV);
448
449         /* Disable multicast promiscuous at reset */
450         ixgbe_disable_vf_mc_promisc(dev, vf);
451
452         /* reply to reset with ack and vf mac address */
453         msgbuf[0] = IXGBE_VF_RESET | IXGBE_VT_MSGTYPE_ACK;
454         rte_memcpy(new_mac, vf_mac, ETHER_ADDR_LEN);
455         /*
456          * Piggyback the multicast filter type so VF can compute the
457          * correct vectors
458          */
459         msgbuf[3] = hw->mac.mc_filter_type;
460         ixgbe_write_mbx(hw, msgbuf, IXGBE_VF_PERMADDR_MSG_LEN, vf);
461
462         return 0;
463 }
464
465 static int
466 ixgbe_vf_set_mac_addr(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
467 {
468         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
469         struct ixgbe_vf_info *vfinfo =
470                 *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
471         int rar_entry = hw->mac.num_rar_entries - (vf + 1);
472         uint8_t *new_mac = (uint8_t *)(&msgbuf[1]);
473
474         if (is_valid_assigned_ether_addr((struct ether_addr *)new_mac)) {
475                 rte_memcpy(vfinfo[vf].vf_mac_addresses, new_mac, 6);
476                 return hw->mac.ops.set_rar(hw, rar_entry, new_mac, vf, IXGBE_RAH_AV);
477         }
478         return -1;
479 }
480
481 static int
482 ixgbe_vf_set_multicast(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
483 {
484         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
485         struct ixgbe_vf_info *vfinfo =
486                 *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
487         int nb_entries = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK) >>
488                 IXGBE_VT_MSGINFO_SHIFT;
489         uint16_t *hash_list = (uint16_t *)&msgbuf[1];
490         uint32_t mta_idx;
491         uint32_t mta_shift;
492         const uint32_t IXGBE_MTA_INDEX_MASK = 0x7F;
493         const uint32_t IXGBE_MTA_BIT_SHIFT = 5;
494         const uint32_t IXGBE_MTA_BIT_MASK = (0x1 << IXGBE_MTA_BIT_SHIFT) - 1;
495         uint32_t reg_val;
496         int i;
497
498         /* Disable multicast promiscuous first */
499         ixgbe_disable_vf_mc_promisc(dev, vf);
500
501         /* only so many hash values supported */
502         nb_entries = RTE_MIN(nb_entries, IXGBE_MAX_VF_MC_ENTRIES);
503
504         /* store the mc entries  */
505         vfinfo->num_vf_mc_hashes = (uint16_t)nb_entries;
506         for (i = 0; i < nb_entries; i++) {
507                 vfinfo->vf_mc_hashes[i] = hash_list[i];
508         }
509
510         for (i = 0; i < vfinfo->num_vf_mc_hashes; i++) {
511                 mta_idx = (vfinfo->vf_mc_hashes[i] >> IXGBE_MTA_BIT_SHIFT)
512                                 & IXGBE_MTA_INDEX_MASK;
513                 mta_shift = vfinfo->vf_mc_hashes[i] & IXGBE_MTA_BIT_MASK;
514                 reg_val = IXGBE_READ_REG(hw, IXGBE_MTA(mta_idx));
515                 reg_val |= (1 << mta_shift);
516                 IXGBE_WRITE_REG(hw, IXGBE_MTA(mta_idx), reg_val);
517         }
518
519         return 0;
520 }
521
522 static int
523 ixgbe_vf_set_vlan(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
524 {
525         int add, vid;
526         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
527         struct ixgbe_vf_info *vfinfo =
528                 *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
529
530         add = (msgbuf[0] & IXGBE_VT_MSGINFO_MASK)
531                 >> IXGBE_VT_MSGINFO_SHIFT;
532         vid = (msgbuf[1] & IXGBE_VLVF_VLANID_MASK);
533
534         if (add)
535                 vfinfo[vf].vlan_count++;
536         else if (vfinfo[vf].vlan_count)
537                 vfinfo[vf].vlan_count--;
538         return hw->mac.ops.set_vfta(hw, vid, vf, (bool)add, false);
539 }
540
541 static int
542 ixgbe_set_vf_lpe(struct rte_eth_dev *dev, __rte_unused uint32_t vf, uint32_t *msgbuf)
543 {
544         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
545         uint32_t new_mtu = msgbuf[1];
546         uint32_t max_frs;
547         int max_frame = new_mtu + ETHER_HDR_LEN + ETHER_CRC_LEN;
548
549         /* X540 and X550 support jumbo frames in IOV mode */
550         if (hw->mac.type != ixgbe_mac_X540 &&
551                 hw->mac.type != ixgbe_mac_X550 &&
552                 hw->mac.type != ixgbe_mac_X550EM_x &&
553                 hw->mac.type != ixgbe_mac_X550EM_a)
554                 return -1;
555
556         if ((max_frame < ETHER_MIN_LEN) || (max_frame > ETHER_MAX_JUMBO_FRAME_LEN))
557                 return -1;
558
559         max_frs = (IXGBE_READ_REG(hw, IXGBE_MAXFRS) &
560                    IXGBE_MHADD_MFS_MASK) >> IXGBE_MHADD_MFS_SHIFT;
561         if (max_frs < new_mtu) {
562                 max_frs = new_mtu << IXGBE_MHADD_MFS_SHIFT;
563                 IXGBE_WRITE_REG(hw, IXGBE_MAXFRS, max_frs);
564         }
565
566         return 0;
567 }
568
569 static int
570 ixgbe_negotiate_vf_api(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
571 {
572         uint32_t api_version = msgbuf[1];
573         struct ixgbe_vf_info *vfinfo =
574                 *IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private);
575
576         switch (api_version) {
577         case ixgbe_mbox_api_10:
578         case ixgbe_mbox_api_11:
579         case ixgbe_mbox_api_12:
580                 vfinfo[vf].api_version = (uint8_t)api_version;
581                 return 0;
582         default:
583                 break;
584         }
585
586         RTE_LOG(ERR, PMD, "Negotiate invalid api version %u from VF %d\n",
587                 api_version, vf);
588
589         return -1;
590 }
591
592 static int
593 ixgbe_get_vf_queues(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
594 {
595         struct ixgbe_vf_info *vfinfo =
596                 *IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private);
597         uint32_t default_q = vf * RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
598         struct rte_eth_conf *eth_conf;
599         struct rte_eth_vmdq_dcb_tx_conf *vmdq_dcb_tx_conf;
600         u8 num_tcs;
601         struct ixgbe_hw *hw;
602         u32 vmvir;
603 #define IXGBE_VMVIR_VLANA_MASK          0xC0000000
604 #define IXGBE_VMVIR_VLAN_VID_MASK       0x00000FFF
605 #define IXGBE_VMVIR_VLAN_UP_MASK        0x0000E000
606 #define VLAN_PRIO_SHIFT                 13
607         u32 vlana;
608         u32 vid;
609         u32 user_priority;
610
611         /* Verify if the PF supports the mbox APIs version or not */
612         switch (vfinfo[vf].api_version) {
613         case ixgbe_mbox_api_20:
614         case ixgbe_mbox_api_11:
615         case ixgbe_mbox_api_12:
616                 break;
617         default:
618                 return -1;
619         }
620
621         /* Notify VF of Rx and Tx queue number */
622         msgbuf[IXGBE_VF_RX_QUEUES] = RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
623         msgbuf[IXGBE_VF_TX_QUEUES] = RTE_ETH_DEV_SRIOV(dev).nb_q_per_pool;
624
625         /* Notify VF of default queue */
626         msgbuf[IXGBE_VF_DEF_QUEUE] = default_q;
627
628         /* Notify VF of number of DCB traffic classes */
629         eth_conf = &dev->data->dev_conf;
630         switch (eth_conf->txmode.mq_mode) {
631         case ETH_MQ_TX_NONE:
632         case ETH_MQ_TX_DCB:
633                 RTE_LOG(ERR, PMD, "PF must work with virtualization for VF %u"
634                         ", but its tx mode = %d\n", vf,
635                         eth_conf->txmode.mq_mode);
636                 return -1;
637
638         case ETH_MQ_TX_VMDQ_DCB:
639                 vmdq_dcb_tx_conf = &eth_conf->tx_adv_conf.vmdq_dcb_tx_conf;
640                 switch (vmdq_dcb_tx_conf->nb_queue_pools) {
641                 case ETH_16_POOLS:
642                         num_tcs = ETH_8_TCS;
643                         break;
644                 case ETH_32_POOLS:
645                         num_tcs = ETH_4_TCS;
646                         break;
647                 default:
648                         return -1;
649                 }
650                 break;
651
652         /* ETH_MQ_TX_VMDQ_ONLY,  DCB not enabled */
653         case ETH_MQ_TX_VMDQ_ONLY:
654                 hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
655                 vmvir = IXGBE_READ_REG(hw, IXGBE_VMVIR(vf));
656                 vlana = vmvir & IXGBE_VMVIR_VLANA_MASK;
657                 vid = vmvir & IXGBE_VMVIR_VLAN_VID_MASK;
658                 user_priority =
659                         (vmvir & IXGBE_VMVIR_VLAN_UP_MASK) >> VLAN_PRIO_SHIFT;
660                 if ((vlana == IXGBE_VMVIR_VLANA_DEFAULT) &&
661                         ((vid !=  0) || (user_priority != 0)))
662                         num_tcs = 1;
663                 else
664                         num_tcs = 0;
665                 break;
666
667         default:
668                 RTE_LOG(ERR, PMD, "PF work with invalid mode = %d\n",
669                         eth_conf->txmode.mq_mode);
670                 return -1;
671         }
672         msgbuf[IXGBE_VF_TRANS_VLAN] = num_tcs;
673
674         return 0;
675 }
676
677 static int
678 ixgbe_set_vf_mc_promisc(struct rte_eth_dev *dev, uint32_t vf, uint32_t *msgbuf)
679 {
680         struct ixgbe_vf_info *vfinfo =
681                 *(IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private));
682         bool enable = !!msgbuf[1];      /* msgbuf contains the flag to enable */
683
684         switch (vfinfo[vf].api_version) {
685         case ixgbe_mbox_api_12:
686                 break;
687         default:
688                 return -1;
689         }
690
691         if (enable)
692                 return ixgbe_enable_vf_mc_promisc(dev, vf);
693         else
694                 return ixgbe_disable_vf_mc_promisc(dev, vf);
695 }
696
697 static int
698 ixgbe_rcv_msg_from_vf(struct rte_eth_dev *dev, uint16_t vf)
699 {
700         uint16_t mbx_size = IXGBE_VFMAILBOX_SIZE;
701         uint16_t msg_size = IXGBE_VF_MSG_SIZE_DEFAULT;
702         uint32_t msgbuf[IXGBE_VFMAILBOX_SIZE];
703         int32_t retval;
704         struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
705         struct ixgbe_vf_info *vfinfo =
706                 *IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private);
707         struct rte_pmd_ixgbe_mb_event_param ret_param;
708
709         retval = ixgbe_read_mbx(hw, msgbuf, mbx_size, vf);
710         if (retval) {
711                 PMD_DRV_LOG(ERR, "Error mbx recv msg from VF %d", vf);
712                 return retval;
713         }
714
715         /* do nothing with the message already been processed */
716         if (msgbuf[0] & (IXGBE_VT_MSGTYPE_ACK | IXGBE_VT_MSGTYPE_NACK))
717                 return retval;
718
719         /* flush the ack before we write any messages back */
720         IXGBE_WRITE_FLUSH(hw);
721
722         /**
723          * initialise structure to send to user application
724          * will return response from user in retval field
725          */
726         ret_param.retval = RTE_PMD_IXGBE_MB_EVENT_PROCEED;
727         ret_param.vfid = vf;
728         ret_param.msg_type = msgbuf[0] & 0xFFFF;
729         ret_param.msg = (void *)msgbuf;
730
731         /* perform VF reset */
732         if (msgbuf[0] == IXGBE_VF_RESET) {
733                 int ret = ixgbe_vf_reset(dev, vf, msgbuf);
734
735                 vfinfo[vf].clear_to_send = true;
736
737                 /* notify application about VF reset */
738                 _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_VF_MBOX,
739                                               &ret_param);
740                 return ret;
741         }
742
743         /**
744          * ask user application if we allowed to perform those functions
745          * if we get ret_param.retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED
746          * then business as usual,
747          * if 0, do nothing and send ACK to VF
748          * if ret_param.retval > 1, do nothing and send NAK to VF
749          */
750         _rte_eth_dev_callback_process(dev, RTE_ETH_EVENT_VF_MBOX,
751                                       &ret_param);
752
753         retval = ret_param.retval;
754
755         /* check & process VF to PF mailbox message */
756         switch ((msgbuf[0] & 0xFFFF)) {
757         case IXGBE_VF_SET_MAC_ADDR:
758                 if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)
759                         retval = ixgbe_vf_set_mac_addr(dev, vf, msgbuf);
760                 break;
761         case IXGBE_VF_SET_MULTICAST:
762                 if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)
763                         retval = ixgbe_vf_set_multicast(dev, vf, msgbuf);
764                 break;
765         case IXGBE_VF_SET_LPE:
766                 if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)
767                         retval = ixgbe_set_vf_lpe(dev, vf, msgbuf);
768                 break;
769         case IXGBE_VF_SET_VLAN:
770                 if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)
771                         retval = ixgbe_vf_set_vlan(dev, vf, msgbuf);
772                 break;
773         case IXGBE_VF_API_NEGOTIATE:
774                 retval = ixgbe_negotiate_vf_api(dev, vf, msgbuf);
775                 break;
776         case IXGBE_VF_GET_QUEUES:
777                 retval = ixgbe_get_vf_queues(dev, vf, msgbuf);
778                 msg_size = IXGBE_VF_GET_QUEUE_MSG_SIZE;
779                 break;
780         case IXGBE_VF_UPDATE_XCAST_MODE:
781                 if (retval == RTE_PMD_IXGBE_MB_EVENT_PROCEED)
782                         retval = ixgbe_set_vf_mc_promisc(dev, vf, msgbuf);
783                 break;
784         default:
785                 PMD_DRV_LOG(DEBUG, "Unhandled Msg %8.8x", (unsigned)msgbuf[0]);
786                 retval = IXGBE_ERR_MBX;
787                 break;
788         }
789
790         /* response the VF according to the message process result */
791         if (retval)
792                 msgbuf[0] |= IXGBE_VT_MSGTYPE_NACK;
793         else
794                 msgbuf[0] |= IXGBE_VT_MSGTYPE_ACK;
795
796         msgbuf[0] |= IXGBE_VT_MSGTYPE_CTS;
797
798         ixgbe_write_mbx(hw, msgbuf, msg_size, vf);
799
800         return retval;
801 }
802
803 static inline void
804 ixgbe_rcv_ack_from_vf(struct rte_eth_dev *dev, uint16_t vf)
805 {
806         uint32_t msg = IXGBE_VT_MSGTYPE_NACK;
807         struct ixgbe_hw *hw =
808                 IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
809         struct ixgbe_vf_info *vfinfo =
810                 *IXGBE_DEV_PRIVATE_TO_P_VFDATA(dev->data->dev_private);
811
812         if (!vfinfo[vf].clear_to_send)
813                 ixgbe_write_mbx(hw, &msg, 1, vf);
814 }
815
816 void ixgbe_pf_mbx_process(struct rte_eth_dev *eth_dev)
817 {
818         uint16_t vf;
819         struct ixgbe_hw *hw =
820                 IXGBE_DEV_PRIVATE_TO_HW(eth_dev->data->dev_private);
821
822         for (vf = 0; vf < dev_num_vf(eth_dev); vf++) {
823                 /* check & process vf function level reset */
824                 if (!ixgbe_check_for_rst(hw, vf))
825                         ixgbe_vf_reset_event(eth_dev, vf);
826
827                 /* check & process vf mailbox messages */
828                 if (!ixgbe_check_for_msg(hw, vf))
829                         ixgbe_rcv_msg_from_vf(eth_dev, vf);
830
831                 /* check & process acks from vf */
832                 if (!ixgbe_check_for_ack(hw, vf))
833                         ixgbe_rcv_ack_from_vf(eth_dev, vf);
834         }
835 }